KSZ8051MLL/KSZ8051FLL KSZ8051MNL/KSZ8051RNL KSZ8031RNL/KSZ8021RNL Product Brief Low-Power, 10Base-T/100Base-TX Physical Layer Transceiver Description The KSZ8051/8031/8021 series is a low-power, small The configurations provided by this product family enable package 10/100 Physical (PHY) Layer Transceiver that the flexibility to meet requirements of different applications: provides the MII interface or the RMII interface to transmit KSZ8051MLL: Supports MII over standard CAT-5 UTP and receive data over standard CAT-5 unshielded twisted cable. RoHS compliant 48-pin LQFP package. pair (UTP) cable or fiber. KSZ8051FLL: Supports MII or RMII over fiber. RoHS This PHY device is based on an enhanced mix-signal compliant 48-pin LQFP package. design and 0.13um CMOS technology, which enable a KSZ8051MNL: Supports MII over standard CAT-5 new level of features, low power consumption and high UTP cable. RoHS compliant 32-pin QFN package. performance in a very compact package. It is the ideal choice of physical layer transceiver for adding power- KSZ8051RNL: Supports RMII with the default 50MHz efficient 10/100 Ethernet connectivity to digital TV, IP Set reference clock output to the MAC, over standard Top Box, Game console, industrial and automotive CAT-5 UTP cable. RoHS compliant 32-pin QFN applications. package. On-chip termination resistors and integrated regulator KSZ8031RNL: Supports RMII with the default 50MHz simplifies board layout while reducing the system BOM. reference clock output to the MAC, over standard The digital I/O interface supports 1.8V, 2.5V, and 3.3V CAT-5 UTP cable. RoHS compliant 24-pin QFN voltage levels, offering flexibility in design. A suite of package. power-down and power-saving modes helps to further KSZ8021RNL: Supports RMII with the default 50MHz reduce power in various operating conditions. This PHY reference clock input, over standard CAT-5 UTP cable. device also provides patented techniques for lower EMI. RoHS compliant 24-pin QFN package. Industrial grade is also available. The datasheets and supporting documents can be found at Micrels web site at: www.micrel.com. Functional Diagram Micrel, Inc. TEL: +1 408.944.0800 FAX: + 1 408.474.1000 www.micrel.com Features Benefits Standard compliance ensures to work with other standard Fully-compliant to IEEE 802.3/802.3u Standard compliant, already deployed devices. Single 3.3V supply with internal 1.2V regulator, and optional Enables low-power design and offers flexibility in design 3.3V, 2.5V or 1.8V VDDIO On-chip termination (eliminating 4 external resistors) not only Integration of termination resistors on the chip simplifies PCB design and reduces system BOM, but also improves overall signal integrity and EMI emission. Energy Detect Power Down when the cable is not plugged and Power consumption is optimized based on the status of the link power down/ slow oscillator mode when the device is not in use. or the device. The use of 25MHz crystal as input reference clock no longer requires 50MHz system clock. The PHY outputs 50MHz 25MHz crystal for input reference clock reference clock to the MAC. It reduces the system BOM in the RMII mode. Auto-MDI/MDIX eliminates the need for cross-over cable, thus HP Auto MDI/MDIX crossover support reduces installation costs. Easy to use. Allows identification of common cabling problems, including LinkMD TDR-based cable diagnostics those not addressed by IEEE. Simplifies network deployment and reduces network downtime. Applications Digital TV Network printer/project IP Set-top box Media converter Game Console Industrial control IP Phone Automotive IP camera Corporate Sales Offices Location Address Telephone Fax Corporate HQ 2180 Fortune Dr. San Jose, CA 95131 USA (408) 944-0800 (408) 474-1000 Western USA 2180 Fortune Dr. San Jose, CA 95131 USA (408) 944-0800 (408) 474-1000 Central USA 2425 N. 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